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/* ========================================================================
(C) Copyright 2023 by Molly Rocket, Inc., All Rights Reserved.
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Please see https://computerenhance.com for more information
======================================================================== */
static b32 OperandIsType(instruction Instruction, u32 Index, operand_type Type)
{
b32 Result = (Instruction.Operands[Index].Type == Type);
return Result;
}
static instruction_operand GetOperand(instruction Instruction, u32 Index)
{
assert(Index < ArrayCount(Instruction.Operands));
instruction_operand Result = Instruction.Operands[Index];
return Result;
}
static register_access RegisterAccess(u32 Index, u32 Offset, u32 Count)
{
register_access Result = {};
Result.Index = Index;
Result.Offset = Offset;
Result.Count = Count;
return Result;
}
static instruction_operand IntersegmentAddressOperand(u32 Segment, s32 Displacement)
{
instruction_operand Result = {};
Result.Type = Operand_Memory;
Result.Address.ExplicitSegment = Segment;
Result.Address.Displacement = Displacement;
Result.Address.Flags = Address_ExplicitSegment;
return Result;
}
static instruction_operand EffectiveAddressOperand(register_access Term0, register_access Term1, s32 Displacement)
{
instruction_operand Result = {};
Result.Type = Operand_Memory;
Result.Address.Terms[0].Register = Term0;
Result.Address.Terms[0].Scale = 1;
Result.Address.Terms[1].Register = Term1;
Result.Address.Terms[1].Scale = 1;
Result.Address.Displacement = Displacement;
return Result;
}
static instruction_operand RegisterOperand(u32 Index, u32 Count)
{
instruction_operand Result = {};
Result.Type = Operand_Register;
Result.Register.Index = Index;
Result.Register.Offset = 0;
Result.Register.Count = Count;
return Result;
}
static instruction_operand ImmediateOperand(u32 Value, u32 Flags = 0)
{
instruction_operand Result = {};
Result.Type = Operand_Immediate;
Result.Immediate.Value = Value;
Result.Immediate.Flags = Flags;
return Result;
}
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